What Grows in US Zone 3a?
One of the coldest zones in the continental US. Short but productive growing season — cold-hardy vegetables and perennials shine.
Last frost
First frost
Frost-free days
Plants that grow well
In Zone 3a, 58 plants grow well, 5 are borderline, and 7 are best grown indoors. Your growing season is 123 days (mid-May to mid-September).
What grows well in Zone 3a
Lettuce
Grows well
Spinach
Grows well
Kale
Grows well
Broccoli
Grows well
Carrot
Grows well
Radish
Grows well
Beets
Grows well
Onion
Grows well
Garlic
Grows well
Potato
Grows well
Peas
Grows well
Cabbage
Grows well
Brussels Sprouts
Grows well
Swiss Chard
Grows well
Arugula
Grows well
Microgreens
Grows well
Leek
Grows well
Asparagus
Grows well
Rhubarb
Grows well
Mint
Grows well
Parsley
Grows well
Cilantro
Grows well
Chives
Grows well
Dill
Grows well
Strawberry
Grows well
Blueberry
Grows well
Raspberry
Grows well
Apple
Grows well
Sunflower
Grows well
Turnip
Grows well
Parsnip
Grows well
Rutabaga
Grows well
Celeriac
Grows well
Kohlrabi
Grows well
French Tarragon
Grows well
Lemon Balm
Grows well
Borage
Grows well
German Chamomile
Grows well
Gooseberry
Grows well
Red Currant
Grows well
Elderberry
Grows well
Ground Cherry
Grows well
Fava Beans
Grows well
Snap Peas
Grows well
Cauliflower
Grows well
Celery
Grows well
Winter Squash
Grows well
Butternut Squash
Grows well
Plum
Grows well
Pear
Grows well
Cranberry
Grows well
Shallot
Grows well
Scallion
Grows well
Horseradish
Grows well
Watercress
Grows well
Sorrel
Grows well
Calendula
Grows well
Savory
Grows wellBorderline — needs care
Best grown indoors
Frequently asked questions
What is USDA Hardiness Zone 3a?
One of the coldest zones in the continental US. Short but productive growing season — cold-hardy vegetables and perennials shine.
When is the last frost in Zone 3a?
The average last frost is mid-May, and the first frost is mid-September. That's about 123 frost-free days per year.
What grows well in Zone 3a?
58 plants grow well here, including Lettuce, Spinach, Kale, Broccoli, Carrot, Radish, and more. See the full list below.
What can't you grow in Zone 3a?
49 plants are too cold or too warm for this zone — see the "won't grow" list below.
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